Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.21.1
Stock-Based Compensation (Narrative) (Details) - Wyndham Hotels & Resorts, Inc. 2018 Equity and Incentive Plan - USD ($)
shares in Millions, $ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
May 14, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Maximum number of shares approved (in shares)     10.0
Remaining shares available (in shares) 5.3    
Stock-based compensation expense $ 5 $ 4